CN203867270U - Double-oval conjoined chimney - Google Patents
Double-oval conjoined chimney Download PDFInfo
- Publication number
- CN203867270U CN203867270U CN201420181077.9U CN201420181077U CN203867270U CN 203867270 U CN203867270 U CN 203867270U CN 201420181077 U CN201420181077 U CN 201420181077U CN 203867270 U CN203867270 U CN 203867270U
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- CN
- China
- Prior art keywords
- chimney
- oval
- steel concrete
- bielliptic
- elliptic cross
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 79
- 239000010959 steel Substances 0.000 claims abstract description 79
- 238000013459 approach Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 239000011150 reinforced concrete Substances 0.000 abstract 6
- 230000008901 benefit Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Abstract
The utility model discloses a double-oval conjoined chimney which comprises reinforced concrete tube bodies with oval cross sections. The double-oval conjoined chimney is characterized in that the two reinforced concrete tube bodies with the oval cross sections are arrayed side by side in the direction of oval short shafts, the size of long shafts and the size of the short shafts of the oval cross sections are gradually increased from top to bottom according to the same proportion, and the two reinforced concrete tube bodies with the oval cross sections are connected through at least one reinforced concrete connecting beam. According to the double-oval conjoined chimney, a steel inner tube is omitted, the construction cost of the chimney is lowered, in the direction of the short shafts of the oval tube bodies, the two oval reinforced concrete tube bodies are connected into a hole through the reinforced concrete connecting beam, and meanwhile the connecting beam reduces horizontal displacement of the structure. The cross section size of the double-oval conjoined chimney is gradually increased from top to bottom, the rigidity of the cross sections is gradually improved from top to bottom, and stress bearing is reasonable. Compared with a traditional double-steel inner tube sleeve tube chimney with the same grade unit, the occupied area is small, and the continuous pouring oval conjoined chimney solves the problem of connector expansion of the steel inner tube chimney.
Description
Technical field
The utility model belongs to power plant chimney technical field, and being specifically related to cylindrical shell section form is that ellipse, space enclosing structure cross section are circular bielliptic(al) disjunctor chimney.
Background technology
Along with improving constantly that country requires standard limit of smog release, newly-built steam power station is all forced to require the desulfurization of carrying out flue gas to process, in adopting the newly-built chimney of wet desulfurizing process, multitube Steel Inner Core of Chimney becomes a kind of form of generally using in power plant chimney.Multitube Steel Inner Core of Chimney can be divided into self-supporting and suspension type by the form of structure of chimney, and higher to the interface requirement of breeching in the design of self-supporting Steel Inner Core of Chimney, breeching temperature expansion can have a negative impact to steel inner cylinder; The design of the expansion joint of suspended steel inner barrel chimney is comparatively complicated, and the steel using amount of bearing platform is also larger.Consider the co-ordination of steel inner cylinder and steel concrete urceolus, multitube steel inner cylinder also will arrange system rolling device simultaneously, and as the horizontal restrain of steel inner cylinder, its design and construction is all comparatively loaded down with trivial details and complicated, and construction cost is also higher.
Modal in tradition multitube Steel Inner Core of Chimney is two steel inner cylinder sleeve chimneys, considering that under use function and economic benefit prerequisite, its steel inner cylinder is generally all comparatively elongated, the bending rigidity of itself is smaller, cannot independently bear the effect of the horizontal loadings such as wind load and seismic load, therefore just need to increase a space enclosing structure in the outside of steel inner cylinder, its whole bending rigidity can be met design requirement.As form common in steel inner cylinder space enclosing structure, be steel concrete urceolus, also have and adopt steelwork tower truss as braced structures.But, no matter be concrete urceolus Steel Inner Core of Chimney, or tower-type chimney, steel inner cylinder in chimney one of the main member that is all absolutely necessary, because steel inner cylinder steel using amount is large, cost is very high, is therefore meeting under the prerequisite of safety, applicability and durability, if can design a kind of Novel double-tube formula chimney without steel inner cylinder, will there is great economic benefit.
Utility model content
The purpose of this utility model is the weak point for above-mentioned prior art, meeting under the requirement of the reliability indexs such as safety of structure, applicability, durability, provides a kind of rational in infrastructure, good looking appearance, the obvious bielliptic(al) disjunctor of economic benefit chimney.
The technical solution of the utility model is:
A kind of bielliptic(al) disjunctor chimney, comprise elliptic cross-section steel concrete cylindrical shell, it is characterized in that, two elliptic cross-section steel concrete cylindrical shells are arranged side by side along ellipse short shaft direction, the long and short shaft size of elliptic cross-section strengthens from top to bottom gradually by same ratio, and two elliptic cross-section steel concrete cylindrical shells connect by least one steel concrete linking beam along cylindrical shell direction.
In order to obtain better technique effect, the horizontal range between described two elliptic cross-section steel concrete cylindrical shell closest approaches equates; There is at least one steel concrete linking beam at described elliptic cross-section steel concrete cylindrical shell same level absolute altitude place; Between described two elliptic cross-section steel concrete cylindrical shells, connect in addition steel ladder; Steel ladder connects the tie point of two elliptic cross-section steel concrete cylindrical shell differing heights; Lightning protection earthing device is arranged at the top of bielliptic(al) disjunctor chimney; On the outer wall of bielliptic(al) disjunctor chimney, there is signal bridge.
The utility model power plant bielliptic(al) disjunctor chimney tool has the following advantages:
(1) bielliptic(al) disjunctor chimney has been cancelled steel inner cylinder, has greatly reduced the construction cost of whole chimney structure, contrasts traditional two steel inner cylinder sleeve chimneys, has great economic benefit.
(2) by the structure optimization type selecting to oval disjunctor chimney, short-axis direction along oval cylindrical shell, with steel concrete linking beam, two oval steel concrete cylindrical shells are linked to be to an integral body, overall structure is more or less the same in the bending rigidity of all directions, stressed evenly in all directions, rational in infrastructure, the use of linking beam simultaneously also can reduce the lateral displacement of structure.
(3) sectional dimension of bielliptic(al) disjunctor chimney strengthens from top to bottom gradually along chimney height direction, and rigidity of section also progressively improves from top to bottom, and reasonable stress, meets mechanical model.
(4) known by mechanical analysis, bielliptic(al) disjunctor chimney can meet the force request under the effects such as deadweight, wind load, seismic load, sunshine.
Steel ladder between (5) two oval cylindrical shells, than the steel cat ladder safety and reliability of traditional multitube Steel Inner Core of Chimney, is used more convenient.
(6) the relative ad eundem unit of bielliptic(al) disjunctor chimney traditional double steel inner cylinder sleeve chimney, floor space is little.
(7) the oval disjunctor chimney of continuous placing has been avoided the problem that Steel Inner Core of Chimney interface expands.
Accompanying drawing explanation
Fig. 1 is the utility model example structure schematic diagram;
Fig. 2 is the utility model embodiment left view;
Fig. 3 is the utility model embodiment A-A sectional view;
Fig. 4 is the utility model Embodiment B-B sectional view;
In figure:
1-elliptic cross-section steel concrete cylindrical shell, 2-steel concrete linking beam, 3-steel ladder, 4-signal bridge, 5-door opening, 6-flue entrance, 7-lightning protection earthing device.
The specific embodiment
Below in conjunction with drawings and Examples, further introduce concrete structure of the present utility model.
A kind of bielliptic(al) disjunctor chimney, comprise elliptic cross-section steel concrete cylindrical shell 1, two elliptic cross-section steel concrete cylindrical shells 1 are arranged side by side along ellipse short shaft direction, the long and short shaft size of elliptic cross-section strengthens from top to bottom gradually by same ratio, horizontal range between two elliptic cross-section steel concrete cylindrical shell closest approaches is equal, and two elliptic cross-section steel concrete cylindrical shells 1 connect by least one steel concrete linking beam 2 along cylindrical shell direction; There is at least one steel concrete linking beam 2 at elliptic cross-section steel concrete cylindrical shell 1 same level absolute altitude place; Two 1 of elliptic cross-section steel concrete cylindrical shells connect steel ladder 3 in addition; Steel ladder 3 connects the tie point of two elliptic cross-section steel concrete cylindrical shell 1 differing heights, be the vertical transportation passage of elliptic cross-section steel concrete cylindrical shell 1, has also strengthened the bonding strength of 1 of two elliptic cross-section steel concrete cylindrical shell; Lightning protection earthing device 7 is arranged at the top of bielliptic(al) disjunctor chimney; On the outer wall of bielliptic(al) disjunctor chimney, have signal bridge 4, the bottom of elliptic cross-section steel concrete cylindrical shell 1 has door opening 5, is convenient to workman and enters work and maintenance in chimney; The bottom of elliptic cross-section steel concrete cylindrical shell 1 also has flue entrance 6.
Two elliptic cross-section steel concrete cylindrical shells 1 arranged side by side are uniform section and perpendicular to the member on ground, the major axis in elliptical cylinder cross section, minor axis can be with reference to ad eundem unit tradition multitube Steel Inner Core of Chimney, the principle equal according to chimney breast area calculates, and cylindrical shell wall thickness also can be with reference to traditional chimney; Steel concrete linking beam 2 is that two elliptic cross-section steel concrete cylindrical shells 1 are linked to be to the whole member that links, and the linking beam quantity at same level absolute altitude place can be one or more; Steel ladder 3 is the vertical transportation passage of elliptic cross-section steel concrete cylindrical shell 1, by the built-in fitting being reserved on cylinder lateral wall, connects, and this has also increased linking between two cylindrical shells, has improved the globality of structure; In addition, according to the requirement of technique specialty, in chimney structure, also answer modelled signal platform 4, lightning protection earthing device 7, flue entrance 6 and door opening 5.
Claims (6)
1. a bielliptic(al) disjunctor chimney, comprise elliptic cross-section steel concrete cylindrical shell, it is characterized in that, two elliptic cross-section steel concrete cylindrical shells are arranged side by side along ellipse short shaft direction, the long and short shaft size of elliptic cross-section strengthens from top to bottom gradually by same ratio, and two elliptic cross-section steel concrete cylindrical shells connect by least one steel concrete linking beam along cylindrical shell direction; Horizontal range between two elliptic cross-section steel concrete cylindrical shell closest approaches equates.
2. bielliptic(al) disjunctor chimney as claimed in claim 1, is characterized in that, there is at least one steel concrete linking beam at described elliptic cross-section steel concrete cylindrical shell same level absolute altitude place.
3. bielliptic(al) disjunctor chimney as claimed in claim 1 or 2, is characterized in that, between described two elliptic cross-section steel concrete cylindrical shells, connects in addition steel ladder.
4. bielliptic(al) disjunctor chimney as claimed in claim 3, is characterized in that, steel ladder connects the tie point of two elliptic cross-section steel concrete cylindrical shell differing heights.
5. bielliptic(al) disjunctor chimney as claimed in claim 1 or 2, is characterized in that, lightning protection earthing device is arranged at the top of bielliptic(al) disjunctor chimney.
6. bielliptic(al) disjunctor chimney as claimed in claim 1 or 2, is characterized in that, on the outer wall of bielliptic(al) disjunctor chimney, has signal bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420181077.9U CN203867270U (en) | 2014-04-15 | 2014-04-15 | Double-oval conjoined chimney |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420181077.9U CN203867270U (en) | 2014-04-15 | 2014-04-15 | Double-oval conjoined chimney |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203867270U true CN203867270U (en) | 2014-10-08 |
Family
ID=51648240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420181077.9U Expired - Fee Related CN203867270U (en) | 2014-04-15 | 2014-04-15 | Double-oval conjoined chimney |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203867270U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924822A (en) * | 2014-04-15 | 2014-07-16 | 江西省电力设计院 | Double-elliptic conjoint chimney |
| CN105570914A (en) * | 2016-02-23 | 2016-05-11 | 上海必立建筑工程有限公司 | Double-pipe or multi-pipe type chimney smoke discharging system |
-
2014
- 2014-04-15 CN CN201420181077.9U patent/CN203867270U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924822A (en) * | 2014-04-15 | 2014-07-16 | 江西省电力设计院 | Double-elliptic conjoint chimney |
| CN105570914A (en) * | 2016-02-23 | 2016-05-11 | 上海必立建筑工程有限公司 | Double-pipe or multi-pipe type chimney smoke discharging system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 |